Answers are grounded in this paper and cite their sources.
Modern interest in modal logic began with this seminal work by the American C.I. Lewis. As well as developing a theory of strict implication based on criticism of Russell and Whitebread's concept of implication, it contains historical information on the history and application of algebra to developments in symbolic logic.
No takes yet. Share an insight, caveat, or question.
Wiener et al. (1920) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: